Physics Electrostatics DUHS 2023
PMDC Verified Question 53 of 131
Q.170 Which law explains the relation between amount of charges and force between them?
A
Ohm's law
B
Lenz's law
C
Coulomb's law
D
Ampere's law
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Coulomb's law
1. Concept:

Charles-Augustin de Coulomb formulated the foundational electrostatic law that quantifies the exact force between two stationary, electrically charged particles.

2. Formula:

$$ F = k \frac{q_1 q_2}{r^2} $$

3. Solution:

  • Coulomb's equation directly bridges the gap between measuring static charge magnitude and measuring dynamic mechanical force.


4. Why other options are incorrect:

Ohm's law bridges Voltage and Current in circuits. Lenz's law dictates the direction of induced magnetic currents. Ampere's law equates magnetic fields to wire currents.

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